Carbureter.



email .aaaat. are-'16.-

alves are opened-"and :orrespond with the rethat the proper mixture isfluid may result..- I

dined my improvement, cribe the same in detail,

.e to the accompanying Illustrated an embodi- Figure 1 is an elevationrbureter, showing the the usual manifold 10- :arbureter and engine.

view of the carburetern with the float-co'nsupplying gasolene or thecarburetor proper.

.ng in the direction of- 70 3'is a verticalsection :arbureter, on the11118 4 1s a section taken 1r and the supply cham- Fig. 1. -Fig. is asec- 1e 5-5, Fig. 41..

ce characters indicate.

i the views.

iesignate the carburetor eceptacle directly conreter for regulating theiereto through the. mevalve 8,.pins 9 and Ie the said pins and con- 8 asshown at 12. :The ed, with an outlet port 1 with a. passage 14 iwhichhas a threaded at 16 with the wall 17.

a'p'assage 14 being restering with a passage which is integral withireter and extends in all, forming the sup- 21, said chamber being ling22 at the top, into iic-al extremity $3 of a a said valve passing a 25spaced. from the l, as shown at 2.6. The tube 25is enlarged as dad intothe lower. ex r 2 Theneedl valve WEED STATES.

Parana cimminsn. oLSEN, or DENVER, corionan oAmzUn'nTnR.

To all whom it may concern:

Be it known that 1, CHARLES D. OLSEN, a citizen of the United States,residing in the city and county of Denver and State of 5 Colorado, haveinvented certain new and do declare the following to be a full, clear,

useful Improvements in Carburetors; and I and-exact description ot theinvention, such as will-enable others'skilled in the art to 10-W11i(il1'.it appertains'to make and use the same,reference being had tothe accompanymg drawings and to the characters of reference markedthereon, which form a part of this specification. 1

device of this character which shall be an improvement overjtheconstructlons now 1n -use, at least, sofar as I am aware.

20 1 "An important feature of m improvement F consists in locating thethrott e-ormain valve for controlling the entrance of air, between 1 5 rthe air inlet and the needle valve which controls the entrance of thecombustible elerangement, the needle valve mechanism "is locatedentirely within the vacuum chamber #301 the. chamber where the partialvacuum-j condition exists, which is-advantageouspar- 3O ticularly whenthe engine'is running at low speed and when the throttle valve is nearlyavers acted on by 1 ,ln order, to'overcome. the difliculty inciclosed.

deirtto the use of the constructions of car simple and economical and atthe same time,

gives increased efliciency as compared with.

any construction heretofore emplo ed, so far, 4 as I am aware.hradditio'n. tot .e general feature of locating the throttle valve onthe air inlet sideof theneedle valve, I provide special me'ans"for-simultaneously adjusting w:-

throttle valve and -1 the needle va1ve,, g

Specification of Letters Patent. Application filed'Janiiary 25, 1915.Serial No. 43148.

whereby the two i closed to properlyc quirements in order of air andcombustib Having briefly out I will proceed to des reference being maddrawing in which is ment thereof.

In this drawing,- of my improved ca same connected with cated betweenthe i Fig. 2 is atop plan 15 My invention'relates to improvements in'carburetors, my object being to provide ashown in connectio trolledchamber for other volatile liquid t This is a view looki arrow 2, Fig.1; Fig

taken through the c 3-3, Fig. 1. Fig. through the carburete ber-on theline 'tion taken on the lin 25 ment, as gasolene. By virtue of this aryThe same .referen .the same parts in alj Let the numeral 5 d proper, and6 the n nected with the carbu: supply of gasolene tl dium of, a float 7,a

nected with the valve receptacle 6 is provid '13 in communication formedin a nipple 15 connection as shown '1 c of the carburetor, thi

duced at 18 and regi: 19 formed in a web 20 the wall of the carbtteriorly from said w port for'the chamber f provided with an ope! whichprojects the cor needle; valve- 24, the

I through .;a j'giilide tuba wall ofthe chamber-2] lower-extremity ofthe shown-at 27 'andthrea eema of. the chambe extends downwardly beyondthe chamber 21 and its lower extremity is provided with a disk or plate29 which rests upon the periphery'of an eccentric cam 30 mounted on aspindle 31 which is journaled in the wall 17, r

as shown at 32 and 00. One extremity of the spindle extends beyond itsbearing on one side, as shown at 34 and to this protruding extremity issecured, as shown at 35, one extremity of an arm 36, whose oppositeextremity is equipped with a regulating screw 37, which is threadedintosaid arm, as shown at 38, .the upper extremity of the screw bearingagainst an eccentric cam 39 which is fast on a spindle 40 journaled inthe wall 41 of the air inlet passage 42. Mounted on the spindle 40 andlocated with. in the passage 42, is a throttle valve 43. The upperextremity of the adjusting screw 37 is held in contact with theperiphery of the cam 39 by means of a spring 44 which is secured to thewall 41 and extends underneath the arm '36, the said spring being un dersufficient tension to perform the aforesaid function as the cam 39 isrotated through the medium of a crank arm 45 whose extremity oppositethe-spindle 40 is pivotally connected, as shown at 46, with a manuallyoperated rod 47. whose extremity opposite the crank is accessible to thechauffeur or person in charge of the machine, or the engine with whichthe carbureter is employed.

Between the enlarged threaded part 27 of the tube 25 within the chamber21 of the carbureter and the disk 29, is located a spring 48, whichsurrounds the protruding extremity of the needle valve and acts on thedisk 29-to maintain the latter at all times in contact with theperiphery of the cam 30.

' From the foregoing description, it will be understood that if weassume that the throttle valve 43 and the needle valve 24 are bothclosed, the parts in this event being in the position illustrated inFigs. 3 and 4, whereby the disk 29 and the upper extremity of the setscrew 37 are respectively in engagement with the eccentric cams 30 and39 at their points of maximum eccentricity, if it is desired to open thethrottle valve and the needle valve, the operator will pull upon the rod47, whereby the; crank arm. 45, the

spindle 40 and the cam 39 will be actuated to open the throttle valve, acorresponding movement will be imparted to the needle valve, since asthe eccentric cam 39 is actuated, the engaging extremity of the screw 37will, by virtue of its being held in contact with the periphery of saidcam, approachithe center of the spindle 40, which movement of the saidscrew and the arm 36 carried thereby will impart a correspondingmovement to the eccentric cam 30, through the medium of the spindle 35.Hence, as the respondingly opened in order to 'obtain a propercombustible mixture of air and volatile liquid.

In order that the position of the carhureter may be, changed withreference to the receptacle 6, the chamber 21 is provided with a web 50extending at right angles to the web 20 and having a passageway 51communicating with the space 26 of the chamber 21. When the passage 19is employed to admit the gasolene or other volatile liquid to thechamber 21, the passage 51 is closed by a stop plug 52. However, shouldit for any reason be desirable to change the position of the carbureterwith reference to the receptacle 6, the chamber 21 may be disconnectedfrom the receptacle by unscrewing the chamber from the nipple 15,inserting the plug 52 in the recess formerly occupied by the threadedpart of the nipple,

and connecting the chamber -17 with the nipple, whereby the passage 14of the latter shall register with the passage 51 of the web 50. e

In order that the height of the fluid within the receptacle 6 may beseen at all times, a gage 53 is employed, the same being equipped with atransparent plate 54 through which the level of the liquid within I thereceptacle may be observed.

Having thus described my invention, what I claim is,-

A carbureter having a throttle valve and a needle valve, the needlevalve being located between the throttle valve and the engine, theneedle valve comprising a stem and a casing in which the stem islocated, the said casing having an opening normally closed by the valvepiece of the stem, the said stem projecting beyond the casing and havinga stop at its exposed extremity, a spring surrounding the stem betweenthe needle-valve casing and said stop, a. rock spindle located below thestem of the needle valve and carrying an eccentric cam, against whichthe exposed extremity of. the needle valve is pressed by the saidspring, :in arm secured to the rock spindle and ca rying a screwthreaded into one extremity thereof, the stem of the throttle valvecarrying an eccentric cam whose periphery is engaged by the said screw,means acting on the said firm for pressing the screw agai ri t sa idteam, j Iir l fetimeny-u he of I eifix'my sig 'iiature a crank armsecured to the stem of the'thi-et-- 1n lpresen eebf-twe. w ifinesses. Itle valve and an operatin rod connected with said erank arm, where y' asthethrottlm 7 5 valve is actuated, a corresponding prede- Wi tel-minedmovement is imparted to the'jf 'needlevalve.

